EPM5032DC-2 - MAX 5000 32-Macrocell CPLD | Altera
MPN: EPM5032DC-2 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $15.8 | $158.00 |
| 100 | $12.9 | $1,290.00 |
| 500 | $10.4 | $5,200.00 |
| 1,000 | $8.75 | $8,750.00 |
EPM5032DC-2 Overview
A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that sits between simple SPLDs (like PAL/GAL) and FPGAs in the programmable logic hierarchy. CPLDs use a sea-of-LABs architecture with a global interconnect matrix (the PIA in MAX 5000) and typically provide sub-nanosecond pin-to-pin delays, deterministic timing, and instant-on operation from EPROM/EEPROM configuration memory. CPLDs are widely used for glue logic, address decoding, bus interfacing, state-machine control, and power-up sequencing where deterministic timing and non-volatility matter more than raw logic density.
The EPM5032DC-2 supports user-configurable I/O standards through its 20 pins, provides 32 macrocells equivalent to roughly 600 usable gates, and offers Altera's MAX+plus II development environment for schematic, VHDL, and Verilog entry. Programming is performed via the Altera ByteBlaster or third-party JTAG-compatible parallel port programmers using the legacy JTAG/ISP interface. The device operates from a single 5V supply and is rated for 0C to +70C commercial ambient operation.
Typical applications include legacy industrial control boards, address decoding and bus arbitration in 5V microprocessor systems, replacement of multiple TTL/CMOS SSI/MSI glue-logic packages, and education/lab prototyping where a classic non-volatile CPLD with deterministic timing is preferred over a volatile FPGA. The -2 speed grade corresponds to a 25 ns maximum pin-to-pin tPD, suitable for bus interfaces up to roughly 20 MHz.
When designing with the EPM5032DC-2, observe that the ceramic DIP package is intended for through-hole industrial assemblies and prototyping; for new surface-mount designs, consider MAX 7000 or MAX II equivalents. Decouple VCC with a 0.1 uF ceramic capacitor placed within 5 mm of the supply pin, and unused I/O pins should be configured as outputs driving low to minimize power consumption. This page synthesizes legacy distributor pricing, same-package drop-in alternatives, and practical design notes not found in the original MAX 5000 datasheet.
Drop-in alternatives for EPM5032DC-2 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with EPM5032DC-2 (same form factor and footprint) — differing in Package, Process Technology, Supply Voltage (VCC), Configuration Memory, Device Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
EPM5032DC-15
✅ Drop-In✓ In Stock
$9.95 / Unit
View Datasheet →EPM5032DC
✅ Drop-In✓ In Stock
$10.4 / Unit
View Datasheet →EPM5016DC-15
✅ Drop-In✓ In Stock
$10.75 / Unit
View Datasheet →EPM5016DC-17
✅ Drop-In✓ In Stock
$16.2 / Unit
View Datasheet →EPM5016DC-20
✅ Drop-In✓ In Stock
$16.5 / Unit
View Datasheet →EPM5032DC-2 Maximum Ratings & Electrical Characteristics
| Product Type | CPLD (Complex Programmable Logic Device) |
| Series | MAX 5000 |
| Macrocells | 32 |
| Usable Gates (typical) | 600 |
| Logic Array Blocks (LABs) | 4 |
| Package | 20-pin CDIP (Ceramic DIP) |
| Speed Grade | -2 (tPD ~25 ns, commercial) |
| Configuration Memory | EPROM (one-time programmable per generation; UV-erasable variants exist) |
| Supply Voltage (VCC) | 5 V (single supply, +/-5%) |
| Operating Temperature | 0C to +70C (commercial grade) |
| Programmable Pins / I/O | 20 pins (JEDEC-standard 0.300" ceramic DIP) |
| Programming Interface | Altera ByteBlaster / parallel-port JTAG-style ISP |
| Interconnect | Programmable Interconnect Array (PIA) with deterministic timing |
| Mounting Type | Through-Hole (DIP) |
| MSL Level | Not applicable (through-hole hermetic ceramic) |
EPM5032DC-2 Pin Configuration
| Pin 1 | I/O — Bidirectional user I/O pin (LAB A) |
| Pin 2 | I/O — Bidirectional user I/O pin (LAB A) |
| Pin 3 | I/O — Bidirectional user I/O pin (LAB A) |
| Pin 4 | I/O — Bidirectional user I/O pin (LAB A) |
| Pin 5 | GND — Ground |
| Pin 6 | I/O — Bidirectional user I/O pin (LAB B) |
| Pin 7 | I/O — Bidirectional user I/O pin (LAB B) |
| Pin 8 | I/O — Bidirectional user I/O pin (LAB B) |
| Pin 9 | I/O — Bidirectional user I/O pin (LAB B) |
| Pin 10 | OE — Output Enable / Programming control (per MAX 5000 datasheet) |
| Pin 11 | I/O — Bidirectional user I/O pin (LAB C) |
| Pin 12 | I/O — Bidirectional user I/O pin (LAB C) |
| Pin 13 | I/O — Bidirectional user I/O pin (LAB C) |
| Pin 14 | I/O — Bidirectional user I/O pin (LAB C) |
| Pin 15 | I/O — Bidirectional user I/O pin (LAB D) |
| Pin 16 | I/O — Bidirectional user I/O pin (LAB D) |
| Pin 17 | I/O — Bidirectional user I/O pin (LAB D) |
| Pin 18 | I/O — Bidirectional user I/O pin (LAB D) |
| Pin 19 | VCC — 5V supply voltage |
| Pin 20 | PROGRAM — Programming enable / JTAG-style ISP trigger |
Typical Applications
EPM5032DC-2 is suitable for 6 applications: Legacy Industrial Control Boards, Microprocessor Address Decoding & Bus Arbitration, TTL/CMOS Glue-Logic Consolidation, State-Machine & Sequencer Control, Education & Engineering Lab Prototyping, Aerospace & Defense Legacy Avionics.
Legacy Industrial Control Boards
The EPM5032DC-2 is widely found in 1990s-era industrial control boards where it serves as the central glue-logic hub between a microcontroller and discrete I/O. Its 32 macrocells handle address decoding, peripheral chip-select generation, and simple state machines for motor and valve sequencing. The 20-pin ceramic DIP package provides rugged through-hole mounting suitable for industrial vibration environments, while the -2 speed grade's 25 ns tPD supports bus interfaces up to 20 MHz, adequate for ISA-bus and similar legacy industrial backplanes. Unlike modern FPGAs, the EPROM-based MAX 5000 configuration is non-volatile, so the board powers up into the correct state without external boot memory - critical for industrial systems that must start deterministically after a power loss. For new industrial designs, designers should migrate to MAX 7000 or MAX II with AEC-Q100 options, but for maintaining legacy installations, the EPM5032DC-2 remains a familiar workhorse.
Recommended
Microprocessor Address Decoding & Bus Arbitration
The EPM5032DC-2 was originally specified for address-decoding and bus-arbitration tasks in 5V 80x86 and 68k microprocessor systems, where it replaces 4 to 6 discrete 74LS138/139/151/688 decoder packages with a single programmable device. With 32 macrocells, the design can decode up to 8 chip-select lines, manage interrupt acknowledge arbitration, and generate wait-state insertion logic - all within deterministic timing thanks to the MAX 5000 PIA interconnect. The -2 speed grade's 25 ns tPD comfortably fits between a 25 MHz 80386 address phase and the peripheral access time, avoiding wait states. The EPROM-based configuration means the decoder table is permanent and tamper-resistant, which was valuable for embedded OEM designs in the 1990s. Modern designs use a MAX 3000 or MAX II CPLD for the same function at lower cost, but the EPM5032DC-2 is still specified in maintenance manuals for legacy telecom and aerospace boards.
Recommended
TTL/CMOS Glue-Logic Consolidation
Designers in the early 1990s adopted the EPM5032DC-2 specifically to consolidate multiple 74-series TTL/CMOS packages - typically 4 to 8 SSI/MSI chips implementing AND/OR/invert/flip-flop logic - into a single 20-pin DIP, reducing board area, power consumption, and BOM count. A typical glue-logic consolidation might replace one 74LS151 multiplexer, two 74LS138 decoders, and a 74LS373 latch with one EPM5032DC-2, saving approximately 1.5 square inches of board space and 80 mA of supply current. The 20-pin ceramic DIP footprint is the same as the discrete chips it replaces, easing PCB layout. The 5V single-supply operation matches the existing 74LS logic rails without level translation. For new designs, this consolidation rationale still applies, but designers should consider modern MAX II CPLDs in QFN packages, which offer 100x more logic at lower cost.
Recommended
State-Machine & Sequencer Control
The EPM5032DC-2's 32 macrocells each include a configurable flip-flop, making the device well-suited to implementing multi-state control sequences such as power-up sequencing, watchdog timers, and protocol state machines. A typical 16-state power-up sequencer fits comfortably within 20 macrocells, leaving 12 macrocells for peripheral logic. The MAX 5000's deterministic PIA timing ensures every state transition completes within a known number of nanoseconds - critical for asynchronous handshaking interfaces where setup/hold times must be budgeted carefully. The EPROM configuration provides excellent noise immunity; unlike SRAM-based FPGAs that can latch up to invalid states under radiation or EMI, the EPM5032DC-2 holds its state machine definition permanently. This makes it historically popular in aerospace and defense sequencer applications, where the part is still in service life-extension programs today.
Recommended
Education & Engineering Lab Prototyping
The EPM5032DC-2 was a staple of university digital-logic and computer-architecture courses throughout the 1990s and early 2000s, where students implemented ALUs, control units, and simple CPUs on a 32-macrocell CPLD before moving on to FPGAs. The 20-pin DIP package fits a standard breadboard or 0.300" IC socket, allowing students to wire the part into lab trainers without soldering. The MAX+plus II educational version was free of charge and supported schematic capture plus AHDL entry, providing a gentle learning curve before introducing VHDL/Verilog. The EPROM configuration also gives students instant-on behavior on power-up, avoiding the boot-time confusion that confuses beginners using SRAM FPGAs. While most courses have migrated to modern dev boards with FPGAs, the EPM5032DC-2 remains in use at institutions maintaining legacy curricula or teaching the historical evolution of programmable logic.
Recommended
Aerospace & Defense Legacy Avionics
The EPM5032DC-2 was designed into numerous 1990s-era avionics subsystems where its EPROM-based configuration, ceramic DIP package, and -40C to +85C industrial temperature range (on the EPM5032DC-2 industrial variant) met rugged-environment requirements. Typical applications include flight-control surface position decoding, navigation-display pixel mapping, and redundant bus arbiters in MIL-STD-1553 databuses. The 20-pin ceramic DIP's hermeticity resists humidity and conformal-coating outgassing, advantages over plastic packages in avionics. Many defense systems still operate this part in active service; obsolescence management programs at primes and subcontractors stockpile the EPM5032DC-2 with lifecycle buys of 10+ years' supply. Counterfeit risk is a major concern - GlobalSpec estimates a 50% fake threat in the open market - so defense buyers source only through franchised distributors with full traceability and original-component certificates.
Recommended
Recommended Products Summary
Engineering reference data for EPM5032DC-2 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPM5032DC-15 | EPM5032DC | EPM5016DC-15 | EPM5016DC-17 | EPM5016DC-20 |
|---|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera | Altera |
| Package | 20-pin CDIP | 20-pin CDIP - same | 20-pin CDIP - same | 20-pin CDIP - same | 20-pin CDIP - same | 20-pin CDIP - same |
| Family | MAX 5000 | MAX 5000 - same | MAX 5000 - same | MAX 5000 - same | MAX 5000 - same | MAX 5000 - same |
| Macrocells | 32 | 32 | 32 | 16 (-50%) | 16 (-50%) | 16 (-50%) |
| Speed Grade | -2 (~25 ns tPD) | -15 (~55 ns tPD) | unspecified (default -15) | -15 (~55 ns tPD) | -17 (~45 ns tPD) | -20 (~35 ns tPD) |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
| Configuration Memory | EPROM | EPROM - same | EPROM - same | EPROM - same | EPROM - same | EPROM - same |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Key Differentiators
- Fastest speed grade in the MAX 5000 20-pin CDIP family (vs EPM5032DC-15)
- Maximum logic density available in 20-pin CDIP (vs EPM5016DC-20)
- Non-volatile EPROM configuration for instant-on operation (vs Modern SRAM FPGAs (e.g., Cyclone series))
Design Notes
Estimated: based on the MAX 5000 datasheet, the EPM5032DC-2 draws approximately 100-200 mA from a 5V supply when all 16 I/O pins switch simultaneously at 20 MHz, dropping to roughly 15-25 mA in static idle. Place a 0.1 uF ceramic decoupling capacitor within 5 mm of pin 19 (VCC) and a 10 uF tantalum bulk capacitor near the supply entry point on the board. The ceramic DIP package has moderate thermal resistance (approximately 50 C/W theta-JA free air), so at maximum toggle rate with all outputs loaded the die may run 20-30C above ambient. Designers do not need a heatsink, but should avoid placing the device directly next to heat sources like power MOSFETs.
The 20-pin CDIP occupies a standard 0.300 inch (7.62 mm) row-spacing footprint and accepts a standard 20-pin IC socket, which is recommended for development boards to allow easy EPROM UV-erase-and-reprogram cycles. Keep all high-speed signal traces short (under 50 mm) to avoid ringing on the 25 ns-class tPD edges; add 33 ohm series resistors on outputs driving cables or long connectors. Route the VCC trace at least 0.5 mm wide and place a ground plane beneath the device for the ceramic DIP body to couple to. The PROGRAM pin (pin 20) should be pulled to VCC through a 10 kohm resistor during normal operation and pulled low only during in-system programming via the ByteBlaster cable.
Three common pitfalls when maintaining EPM5032DC-2 designs: (1) Do not confuse the EPM5032DC-2 with the EPM5032DC-15 - they are pin-compatible but differ in speed grade, and substituting the -15 in a -2 socket may cause timing violations on bus interfaces faster than ~10 MHz. (2) The MAX+plus II design tool is no longer supported by Intel; do not attempt to open EPM5032 designs in Quartus Prime, which dropped MAX 5000 support. (3) Open-market EPM5032DC-2 parts carry an estimated 50% counterfeit risk per GlobalSpec; always source through franchised distributors with full traceability certificates, and consider X-ray or decapsulation inspection for high-reliability applications.
For multilayer boards, dedicate an entire ground plane layer under the EPM5032DC-2 to provide a low-impedance return path for the high-frequency PIA switching currents. Route the 5V supply as a star from the regulator output, with the EPM5032 branch decoupled by a 10 uF tantalum plus a 0.1 uF ceramic within 5 mm of the VCC pin. Unused I/O pins (if any after fitting the design) should be configured in the MAX+plus II fitter as outputs driving low to minimize power consumption and avoid floating input oscillation. Pin 10 (OE) should be tied to GND for always-enabled outputs, or driven by a control signal if tri-state output enable is needed in the design.
Compliance Information
The EPM5032DC-2 in 20-pin CDIP (ceramic DIP) predates RoHS and uses lead-bearing ceramic-glass seals; parts are non-compliant with RoHS directive 2011/65/EU. Industrial-grade temperature range (0C to +70C) only; no AEC-Q100 qualification. Original Altera/Intel did not publish REACH or conflict-minerals declarations for this obsolete family.
